Journal of Applied Meteorology: Recent submissions
Now showing items 1181-1200 of 6019
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The Effect of Tropospheric Temperature Lapse Rates on the Ascent Rates of Pilot Balloons
(American Meteorological Society, 1974)By utilizing a double-theodolite tracking system in conjunction with aircraft soundings and rawinsonde observations during pilot balloon release, it was found that temperature lapse rate may have a definite and sometimes ... -
Computing Probabilities Associated with the Markov Chain Model for Precipitation
(American Meteorological Society, 1974)tract -
Doppler Lidar Observations of Hydrometeors
(American Meteorological Society, 1974)Significant Doppler lidar returns have been observed from snow and rain. This demonstrates the feasibility of measuring velocity and range of hydrometeors with 10.6-?m wavelength CO2 laser lidar. -
A Simple, Airborne, Ice Particle Collector
(American Meteorological Society, 1974)Ice particles are collected from aircraft in sub-freezing silicone oil, with the aid of a simple decelerator, and brought back to the laboratory for study. -
Ice Nucleation in a Supercooled Cloud by CuI-3AgI and AgI Aerosols
(American Meteorological Society, 1974)The relative numbers of active ice nuclei for identically produced aerosols of AgI and CuI-3AgI are determined experimentally. For nuclei activated at temperatures above ?9C, CuI-3AgI produces a greater number of active ... -
Ice Nucleus Measurements in an Urban Atmosphere
(American Meteorological Society, 1974)On the basis of Millipore filter measurements it is concluded that natural ice nuclei were deactivated in passing over St. Louis, Mo., during March 1973. This conclusion is supported by very strong statistical evidence. ... -
Wind Determination using Omega Signals
(American Meteorological Society, 1974)A procedure for determining vertical wind profiles using Omega signal phase information from any number of Omega stations (at least three) is given. A statistical method of smoothing the phase data is presented and weighted ... -
Depolarization of Laser Light Backscattered by Artificial Clouds
(American Meteorological Society, 1974)An apparatus is described which measures the linear depolarization ratios of vertically polarized laser light (6328 Å) backscattered by mixed phase particle clouds grown in a laboratory cold chamber. Variations in linear ... -
Cloud Top Height Variability of Strong Convective Cells
(American Meteorological Society, 1974)Cloud top height variability of cloud domes above the cirrostratus anvil was investigated for two severe local storm occurrences over Texas on 12 and 13 May 1972. From a Lear Jet at 14 km, side-looking photographs were ... -
Estimation of Long-Term Concentrations Using a “Universal” Wind Speed Distribution
(American Meteorological Society, 1974)Estimation of long-term average concentrations from fixed sources is completely straightforward using standard dispersion formulas and occurrence statistics of wind speed classes and wind directions. However, in many cases ... -
Forecasting the Behavior of the St. Louis, Missouri, Pollutant Plume
(American Meteorological Society, 1974)Forecasts of the position and structure of the St. Louis pollutant plume became necessary during the NCAR Fate of Atmospheric Pollutants Study (FAPS). The purpose of the project was to obtain estimates of the mean lifetimes ... -
Inadvertent Rain Modification as Indicated by Surface Raincells
(American Meteorological Society, 1974)Rainfall data from a large dense network are being used to study inadvertent rainfall modification in the St. Louis area. Surface raincells are delineated and then analyzed to determine the character of any urban-induced ... -
Sensible Heat Fluxes over an Urban Area—Vancouver, B.C.
(American Meteorological Society, 1974)The use of the eddy correlation technique is demonstrated for the measurement of sensible heat transfer in an urban area. The problems of time and space sampling (in the horizontal and vertical) are investigated. Based on ... -
Microwave Measurements of the Liquid Water Content of Atmospheric Aerosols
(American Meteorological Society, 1974)A new method is described for the measurement of the dielectric constant of atmospheric aerosols. From these observations the free liquid water content of airborne particles can be deduced. An instrument to measure ... -
Particle Number and Mass Distributions above 10−4 cm Radius in Sand and Aerosol of the Sahara Desert
(American Meteorological Society, 1974)Measurements of the particle size distribution in surface air and bulk soil (soil surface and 10 cm depth) were performed in the Sahara desert. This desert is a very important source for mineral dust transported over the ... -
The Microclimates of the Arctic Tundra
(American Meteorological Society, 1974)The microclimates of the arctic tundra at Barrow, Alaska, are described for the near-surface terrestrial layers in which most biological activities take place. Temperature profiles are constructed from detailed measurements ... -
Four-Dimensional Data Assimilation Experiments in the Southern Hemisphere
(American Meteorological Society, 1974)An attempt has been made to isolate some of the problems likely to be associated with the practical implementation of four-dimensional data assimilation schemes in the Southern Hemisphere. In particular, the requirement ... -
Rainfall Measurements During Hurricane Agnes by Three Overlapping Radars
(American Meteorological Society, 1974)As part of the International Field Year for the Great Lakes, rainfall measurements were made for hurricane Agnes over the Lake Ontario watershed by two C-band radars and one S-band radar. Two dense networks of raingages ... -
A Reassessment of the Effect of CO2 Variations on a Simple Global Climatic Model
(American Meteorological Society, 1974)A simple global climatic model described earlier is modified slightly and reapplied to the CO2 problem. The modifications include using a more efficient numerical method to solve the system of equations and changing the ...